Paper-slitting machine.



J. A. WHITE. PAPER' SLITTING MACHINE. APPLIOATIoN FILED sBPT. s, 1911.

1,026,482. y Patented May 14, 1912.

2 SHEETS-SHEET 1.

'1. A. WHITE.

' PAPER SLITTING MACHINE.

APPLICATION FILED SEPT. 5, 1911. l 1,026,432, Patented May 14, 1912.

2 SHEETS-SHEET 2.

ne PATENT orrrcn JOSEPH ATWOOI) WHITE, OF PHILADELPHIA, PENNSYLVANIA, ASSIG-NOB T0 THE MOORE AND WHITE COMPANY, 0F PHILADELPHIA, PENNSYLVANIA, A CORPORA- TION OF PENNSYLVANIA.

PAPER-stumme MACHINE.

Specification of Letters Patent.

Application led September 5, 1911.

Patented May 14, 1912.

serial No. 647,570.

The object of this invention is to provide mechanism for slitting paper as itis being wrapped in the form of a'roll. This object I attain in .the following manner, reference being had to the accompanying drawings, in which:

Figure 1, is a longitudinal vsectional view of a machine for wrapping paper in the forni of a roll illustrating my improved cutting mechanism for cutting the roll of paper into strips; Fig. 2, is an enlarged sectional view of part ofthe mechanis'millustrated' in Fig. l, taken on theline 2--2, Fig. 3; Fig. 3, is a face view loo-king in the direction of the arrow 3, Fig. 2; Fig. 4, is a sectional plan view on thev line 4 4, Fig. 2; Fig. 5, is a detached perspective view of one of the bearings; Fig. 6, isan enlarged sectional view of part of Fig. 4; Figs. 7 and 8, are views of a modification, and Fig. 9, is a side view illustrating another modification.

Av is the frame, Bv B are the t-Wo drums which support and wind the roll of paper C upon a mandrel c, the ends of the mandrel being adapted to guides a in the frame.

D is a conveying belt which passes under the roller B and around the belt wheels d d', the wheel d, inthe Vpresent instance, being the driven wheel. The belt D is made of a series of bands spaced a given distance apart, and located between the bands are deilectors c carried upon a bracket e which direct the paper into the space between rolls 'B B', so that it can be wrapped around the mandrel c. n The paper may come direct from a paper making machine or may come from another drum upon which the paper has been previously wound.

It is desirable in many'instances to cut the paper into strips and this has usually been vaccomplished by a slittin machine placed in advance of the rolls, an the paper has been slit into longitudinal lengths prior tobeing rolled on the mandrel c. In the presentinstance I utilize the roll of paper as they platen for the cutting knives, and place the cutting mechanism, which s illustrated at I, above the roll of paper, as indicated in Fig. l, and I mount the cutters on a transverse tubular bar I. Secured to the bar is a series of brackets N made in halves and clamped by screws n fa, as clearly illustrated in Fig. 2. A feather n2 is clamped between the halves of the bracket and eX- btends into a slot iri the bar I so that while the brackets can be shifted longitudinally on the bar/they are held from turning thereon by thefeather.

As illustrated in Fig. 2, the bracket `N has a segmental slot c adapted to receive the bolt i upon which the bearings M M are pivoted. These bearings are connected together at their outer ends bya bolt m on which is pivoted a set bolt' k having nuts located on each side of a projection of the bracket N. VProjecting from each bearing M is a hub m', Figs. 4 and 5, on which the presser rollers s s are mounted. In each hub is a hole m2 located oli' center, the two holes are in line, and extending through the holes is a spindle f on which is `mounted the cut-ter f` which is very thin so as to make a narrow cut in the paper. Surrounding the spindle f are sleeves f2 which bear upon the sides of the blade and are held against the blade by the head of the spindle at one end and the nut at the opposite end, as shown in Figs. 4 and 6.

By locating the pivot of the cutter blade olf center and at the rear of the presser rollers, the rollers hold the paper in advance of the cutter, thus making a clean cut, and

the cutter blade can be made very thin as it is held laterally by the rollers s s close to the cutting point, yetit can penetrate the paper to the desired depth owing to its being located off center in respectto the rolls. By making a very narrow cut in the paper the wall on each side of the out will properly support the vsheet being cut, thus making a ened and the bolt i clamped firmly in posi-n tion.

It may be necessary to adjust the cutter blades as they wear, or to adjust one or more of the cutting devices according to the character of the paper, as in some rolls there occur vsoft spots and the cutting devices must be so set that the blades will project into the roll to a greater extent at these points than when the roll is hard. When it is desired to adjust both the rollers s s and the cutting blade f, then the boltz'is loosened and the bearings can be bodily adjusted toward or trom'the roll of paper.

In Figs. 7 and 8, I have shown the bearings M mounted on a xed pivot pin i. In this construction both the rollers and the blade are adjusted together.

In Fig. 9 I have shown the presser rollers s s mounted on a bearing M2 pivoted at 2 to the bracket N and having an adjusting bolt L, and pivotally mounted on the bearing M2 is a supplementary bearing M3 carrying the blade f3, and h2 is an adjusting bolt pivotally connected to the bearing M3 and adjustable in a projection of the bearing M2 so that each frame can be adjusted independently.

I claim:

1. The combination in a paper slitting.

so that the paper is held on the roll by the presser rollers immediately in advance of the cutting point whereby 'buckling is prevented due to the action of the cutting blade in severing the paper.

2. The combination in a paper cutting machine, of means for forming a roll of paper; a bracket located in close proximity to the roll; a bearingadjustably mounted on the bracket and carrying a presser roller; and a cutting blade, the cutting blade being arranged oli' center in respect to the roller; the bearing being adjustable on the center of the presser roller as a pivot so that the blade can be adjusted' toward and from the roll of paper independently of the roller.

3. The combination of means for forming a roll of paper; a bracket; a bearing; a roller mounted on the bearing; and a rotary cutter slot and holding the bearing in the positionto which it is adjusted; with means for ad.- justing the bearing.

4c. The combination in a paper cutting v machine of a frame; two supporti drums for the roll of paper; means for fee ing the paper to form the roll; a transverse bar; brackets clamped to the bar; each bracket having a pair of presserl rollers; and an intervening rotating cutting blade; the cutting blade being arranged o center in respectv to the rollers so that the rollers will hold the paper in advance of the point where the'cut is made.

5. The combination of means for forming a roll of paper; a bar; a` bracket adjustably mounted on the bar; two bearings pivotally mounted on the bracket; each bearing having a hub; a' presser roller mounted on each hub; a rotary cutter located between the hubs; and a spindle on which the cutter is mounted.

6. The combination of means for forming a roll of paper; a bar; a bracket adjust-ably mounted on the bar; two bearings pivotally mounted onthe bracket; each bearing having a hub; a presser roller mounted on each hub; a rotary cutter located between the hubs; a spindle on which the cutter is mounted; sleeves surrounding the spindle and located on each side of the vblade and held against the blade by the head of the spindleon one side and a nut on the spindle on the opposite side.

7.y The combination of means for forming a roll of paper; a bar; a bracket secured to said bar; two bearings pivotally mounted on the bracket, adjusting means common to both bearings; each bearing having an inwardly extending hub; a presser roller mounted on each hub; a spindle extending through both hubs at one side of the center; a thin circular blade located on the spindle between the hubs; and a sleeve on each side of the blade and through which the spindle extends; said sleevefbeing held in place by a head and nut on the spindle.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribin witnesses.

JOS PH ATWOOD WHITE. Witnesses:

WM. E. SHUrE, WM. A. BARR.

Copies of this patent may 'ne obtained for ve cents each, 'by addressing the Commissioner of Patents.

" Washington, D. C.

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